Features:

Flip-up lens for welding and grinding
Polypropylene construction provides strength and heat resistance
Adjustable headband for head diameter, angle and height
Industrial quality
Shade #11 Lense
Certified to AS/NZ 1337
Replacement Lenses:

EWL406 - Clear Lense
EWL407-5 - Shade 5 Lense
EWL406-11 - Shade 11 Lense